The immune response suppressed by specific antibody.

  • 1 April 1969
    • journal article
    • Vol. 16 (4), 549-59
Abstract
Homologous or heterologous anti-sheep erythrocyte serum given passively to normal rats markedly suppressed their spleen plaque-forming cell and serum antibody response to sheep erythrocytes. Passive immunization against bovine γ-globulin prevented `sensitization' by a first injection of the antigen. The suppressive effect of passive antibody was prevented or partially prevented by adjuvants, B. pertussis vaccine, S. typhi endotoxin or Freund's complete adjuvant. Passive antibody or adjuvants had relatively little effect on the primary response when given more than 24 hours after antigen or on the secondary response when given with antigen.